Joseph Larmor (1857–1942) was a British physicist and mathematician.

Larmor may also refer to:

Larmor (crater), on the Moon LARMOR neutron microscope, a planned microscope based on neutron scattering Larmor precession and Larmor frequency, the precession of the magnetic moment Larmor formula, to calculate the total power radiated by a non relativistic point charge as it accelerates or decelerates Larmor radius, the radius of the circular motion of a charged particle in the presence of a uniform magnetic field Larmor's theorem, by Joseph Larmor

See also Lamour (disambiguation)